> ## Documentation Index
> Fetch the complete documentation index at: https://docs.uniblock.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# Ink Sepolia (INK) Overview

Ink Sepolia (INK) RPC

Use Uniblock's JSON-RPC endpoint to access Ink Sepolia (INK) with low-latency routing and a single API surface across providers.

## What is Ink Sepolia?

Ink Sepolia is an EVM-compatible testnet. It is a testnet for Ink. Its ticker symbol is `INK`.

## What is the Ink Sepolia (INK) JSON-RPC API?

The JSON-RPC API is the standard interface for reading chain state, sending transactions, and interacting with smart contracts where supported.

## Making API requests

Send a POST request to `https://api.uniblock.dev/uni/v1/json-rpc?chainId=763373`. Include the JSON-RPC method and params in the request body.

## Supported networks

| Network     | Symbol | Type    | Chain ID |
| ----------- | ------ | ------- | -------- |
| Ink         | `INK`  | Mainnet | `57073`  |
| Ink Sepolia | `INK`  | Testnet | `763373` |

## API reference

Browse the available method groups for this chain:

* [Debug](/reference/jsonrpc-docs/763373/debug/debug-get-bad-blocks)
* [EVM](/reference/jsonrpc-docs/763373/evm/eth-accounts)
* [Trace](/reference/jsonrpc-docs/763373/trace/trace-block)